OTI BENZODIAZEPINES INTERCEPT MICRO-PLATE EIA MODEL #1110I
Device Facts
| Record ID | K013882 |
|---|---|
| Device Name | OTI BENZODIAZEPINES INTERCEPT MICRO-PLATE EIA MODEL #1110I |
| Applicant | OraSure Technologies, Inc. |
| Product Code | JXM · Clinical Toxicology |
| Decision Date | Apr 17, 2002 |
| Decision | SESE |
| Submission Type | Traditional |
| Regulation | 21 CFR 862.3170 |
| Device Class | Class 2 |
Indications for Use
The OTI Benzodiazepines Intercept® MICRO-PLATE EIA is intended for use by clinical laboratories in the qualitative determination of benzodiazepines in oral fluid collected with the Intercept® Oral Fluid Drug Test Oral Specimen Collection Device using a 1.0 ng/mL(nordiazepine) cutoff. For In Vitro Diagnostic Use. The OTI Benzodiazepines Intercept® MICRO-PLATE EIA provides only a preliminary analytical test result. A more specific alternative chemical method should be used in order to obtain a Gas chromatography/mass spectrometry/mass spectrometry confirmed analytical result. (GC/MS/MS) is the preferred confirmatory method. Clinical consideration and professional judgment should be applied to any drugs of abuse test result, particularly when a preliminary, positive result is observed.
Device Story
The OTI Benzodiazepines Intercept® MICRO-PLATE EIA is a competitive micro-plate immunoassay used in clinical laboratories to detect benzodiazepines in oral fluid. The device utilizes the Intercept® Oral Fluid Drug Test Oral Specimen Collection Device for sample acquisition. During the assay, the oral fluid specimen and an enzyme-labeled hapten derivative are added to an EIA well containing fixed antibodies. A competitive binding process occurs between the drug in the specimen and the enzyme-labeled hapten for the antibody binding sites. After washing, a substrate is added to produce color. The absorbance at 450 nm is measured; the intensity is inversely proportional to the concentration of benzodiazepines in the specimen. The output is a preliminary qualitative result. Healthcare providers use this result as a screening tool, which must be followed by a more specific confirmatory method, such as GC/MS/MS, before making clinical decisions. The device assists in identifying potential benzodiazepine presence, supporting clinical judgment in drug abuse testing.
Clinical Evidence
Clinical accuracy was evaluated across three population studies with 149 total specimens. Performance was compared against GC/MS/MS as the reference method. Results showed the device effectively distinguishes between positive and negative samples at the 1.0 ng/mL cutoff. Precision studies reported intra-assay CVs of 4.9-6.5% and inter-assay CVs of 7.6-11.4%.
Technological Characteristics
Solid-phase competitive enzyme immunoassay. Uses micro-plate format with antibody-coated wells. Sensing principle is colorimetric absorbance measurement at 450 nm. The system is designed for use with the Intercept® Oral Fluid Drug Test Oral Specimen Collection Device. No specific materials or software algorithm classes are detailed beyond standard immunoassay reagents.
Indications for Use
Indicated for clinical laboratory use for the qualitative detection of benzodiazepines in oral fluid specimens collected via the Intercept® Oral Fluid Drug Test Oral Specimen Collection Device. Intended for use with a 1.0 ng/mL cutoff. Provides preliminary results requiring confirmation by GC/MS/MS.
Regulatory Classification
Identification
A benzodiazepine test system is a device intended to measure any of the benzodiazepine compounds, sedative and hypnotic drugs, in blood, plasma, and urine. The benzodiazepine compounds include chlordiazepoxide, diazepam, oxazepam, chlorzepate, flurazepam, and nitrazepam. Measurements obtained by this device are used in the diagnosis and treatment of benzodiazepine use or overdose and in monitoring levels of benzodiazepines to ensure appropriate therapy.
Special Controls
*Classification.* Class II (special controls). A benzodiazepine test system is not exempt if it is intended for any use other than employment or insurance testing or is intended for Federal drug testing programs. The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 862.9, provided the test system is intended for employment and insurance testing and includes a statement in the labeling that the device is intended solely for use in employment and insurance testing, and does not include devices intended for Federal drug testing programs (*e.g.,* programs run by the Substance Abuse and Mental Health Services Administration (SAMHSA), the Department of Transportation (DOT), and the U.S. military).
Predicate Devices
- Roche Diagnostic Systems, Abuscreen ONLINE® kit for Benzodiazepines (urine) (K914509)